[pcai]

Today, after driving the car for 5 mins, I noticed a subtle knocking noise inside the cabin. Since the car has only been driven for 5 mins, the engine was still cold. This is the 1st time I ever noticed this noise, and the noise went away after I shut the car off and restarted it.
Drivetrain is stock and car only has 5100 miles on it. Anyone experienced something similar or know what's causing this sound? Any opinions would be appreciated.
Turn up your volume and then you should be able to hear the sound in the video:
https://youtube.com/shorts/vUYsbFHCs2g?feature=share